It ensures that Part 3 (and all others) downloaded correctly and aren't . If Part 3 shows a "Mismatched" or "CRC Error," you will need to re-download just that specific part. 4. Common Troubleshooting
You do not need to extract Part 3 individually. Right-click on Part 1 (the first file in the sequence). Immortals - Fenyx Rising [FitGirl Repack].part3...
FitGirl repacks usually include a tool called Verify BIN files before installation.bat . Once you have extracted the files: Run that batch file. It ensures that Part 3 (and all others)